| Earnings/ (Loss) Per Share (Tables) | 12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Dec. 31, 2018 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Earnings Per Share [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Calculation of Basic and Diluted Earnings (Loss) Per Common Share | The following table presents the calculation of basic and diluted earnings (loss) per common share (in thousands, except per share amounts): 
 
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- References No definition available. 
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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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